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Cisco IOS Software Releases 12.1 Special and Early Deployments

Cisco IOS Software Release 12.1(5)YF

Document ID: 20329




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Description of the Release

 
X Release:
This release introduces IOS support for Cat4k, providing high density FXS and FXO analog interface connectivity, and a hardware encryption accelerator, both of which are attachments to the Cat4k Gateway line card.

Product and Feature Support

 

 
 
 
 
 
 
 
 
 

The Cisco IOS® Software Release 12.1(5)YF  will support the following platforms and images: 

Cat4K Images:

  • c4gwy-io3sx3-mz: Data + FW+ voice (no h/w encryption)
  • c4gwy-io3s56i-mz: Data + FW + IPsec 56
  • c4gwy-io3sx356i-mz: Data + FW + voice  + IPsec 56
  • c4gwy-ik2o3s-mz: Data + FW +  IPsec 3DES
  • c4gwy-ik2o3sx3-mz: Data + FW + voice  + IPsec 3DES
  • c4gwy-io3s-mz: Data + FW + voice

Note:
The features delivered with this XED release will be immediately incorporated into Cisco IOS Softwere Release 12.1T and subsequent Cisco IOS 12.2 releases. 

Support Pages

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

For more information, consult the following web pages: 

Release Documentation

Parent Release Documentation Other Links
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  • Cisco IOS Field Notices
  • Cisco IOS Reference Guide
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Lifecycle of Release

 
Cisco IOS Reference Guide
 
Milestones Y2K Compliance Release Designation
CCO FCS: April 2, 2001

MFG FCS: 

EOS: 

EOE:

EOL:

Yes XED Release
Maintenance Releases
CCO customers can view the Projected Release Dates for Cisco IOS Software Product Bulletin

It is highly recommended that Release Notes are used to determine if a maintenance release should be used. Release Notes provide announcements of new features and a summary of known caveats at the time of the renumber.

Maintenance Cycle: Download
Image
Cisco IOS Software Release 12.1(5)YF
No maintenance plans for an X release.
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Interim Builds

Short-lived X releases do not provide interim builds. 


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Recommended Customer Migration Path

Cisco IOS Software Release 12.1(5)YF is expected to migrate to 12.2(9)T.

To view the projected release date of Cisco IOS Software Release 12.1(5)YF, see the
Projected Release Dates for Cisco IOS Software Product Bulletin



Updated: Feb 19, 2003 Document ID: 20329